Method of and device for the regasification of liquefied gases



Feb. 18, 1930. RHEYLAQDT 1,747,366

METHOD OF AND DEVICE FOR THE REGASIFICATI'ON OF LIQUEFIED GASES Filed Feb. 16, 1928 I 35L J) g t INVENTORY (Z vlsf/on h i/r/n 50/ l/cy/an If ATTORNEY .QUNITIED STATES PA'TE cnnrs'rmn WILHELM RAUL HEYLANDT, on nnnLIn-Lnnxwmz, GERMANY Patented Feb, 18, 1930 I r HElSsuEn NT OFFICE. v

nnrnon "ensign DEVICE FOR THE REGASIFICATION or LIQUEFIED eases n p ieaiitn llled lcliruary is, '1928, Seria1 no; 254,913, and in Germany March 29, 1927.

. This invention relatesto a process and apparatus for regasifying liquefied gases, the object of the invention being to provide a process and apparatus of this character by 5 means of which the tension resulting from the self-compression of gases WhlCh evaporate from the liquid in pressure containers is progressivelyincreased during the gasification, saidincreased tension being utilized to increase the heating efl'ect and'thereby to increase the speed'of evaporation of the liquid.-

It has'been demonstrated by numerous ex periments that if liquefied gases are introduced 'into a pressure vessel for producing pressuregases in said vessel by self compression, the gasification, after the receptacle has beenclos'ed, proceeds very slowly, especially at the beginning, owing to the necessity of guarding "against too violent gasification. The object, therefore, of the present invention is to reduce to a minimum the delay in obtaining the highest final pressure. This result is obtained by the introduction of gases under a predetermined pressure into the pressure tank thereby artificially increasing the pressure within the gasification chamber in said pressure tank, whereby gasification is accelerated under the influence of the increase in tension and evaporation occurs at such 'a rate that the liquid in the container is in a very short time converted into gas of the desired pressure.

The drawing accompanying this specification illustrates in partly sectional side elevation an apparatus adapted for carrying out the improved process. In said drawing, 1 designates ,a pressure tank or container within which is disposed a thin-walled inner receptacle 7' spaced from the wall of pressure tank 1 and which receptacle communicates by means of a pipe 5 with a receptacle 2, an ex 7 in'ginormall closed a plug 6. The communication. etwcen the receptacle 7 andrepredetermined pressure is-permitted .to' pass from the receptacleQ into said receptacle 7 and through the openings 8-into thespace between the walls of said receptaclev and the pressure tank 1 thereby equalizing the pres.- sure within and without the receptacle 7 and augmenting the tension in-the pressure tank.

If desired, the closure 6 ofthe vessel 1 may be connected with the lever '3 thereby to admit the auxiliary pressure gas immediately at the commencement of the self-compression. v 7

It is to beunderstood that while I have for purposes of illustrationshown only one pressure tank and one auxiliary pressure receptacle, a plurality of pressure tanks may be connected in series with a single auxiliary receptacle or a number of auxiliary receptacles may be connected with a single pressure tank, without departing from the spirit and scope of the present invention,

From the foregoingit willbe seen that the layer of'gas between the pressure tank and the inner receptacle, which gas at the beginning of the operation forms a very good insulation, is converted by the addition of auxiliary pressure gas into a good heat-conducting layer so f that the speed of evaporation is materially increased.

Having thus described Iclaim is: a

1. The processof gasifying liquefied gases which consists in filling said gases into a vessel insulated against heat, and treatingthe insulating medium to cause the same to act asa heat-exchanging medium.

my invention, what 2. The process of gasifying liquefiedgas'es I which consists in fillingsaid gases into a vessel insulated against heat by mean of a fluid insulating medium, and treating said fluid medium to cause the same to-act as a heatexchanging medium.

3. The process of gasifying liquefied gases whichcon'sists in filling said gases into a vessel insulated against'heat by mean of a fluid insulating medium and subjecting said fluid medium to the action of a gas under pressure thereby to compress the fluid and cause it to act as a heat-exchanging medium.

4. The process of regasifying liquefied gases which consists in filling said gases into a closed thin-walledreceptacle disposed with in a pressure vessel, and increasing the pres- 1 sure 1n sald receptacle and between it and the p pressure vessel.

5. The process of regasifying liquefied gases which consists in filling said gases into a closed thin-walled receptacle disposed within a pressure vessel and adding high pressure gases from an outside source to the receptacle and between it and the pressure vessel thereby to increase thepressure therein.

6. Apparatus for regasifying liquefied gases, comprising a pressure tank, a thinwalledreceptacle disposed within and spaced from said tank, the interior of said receptacle communicating with the space between the receptacle and tank, and an auxiliary pressuregas receptacle in communication with said thin-walled receptacle.

In testimony whereof I have signed my name to this specification.

CHRISTIAN WILHELM PAUL HEYLANDT. 

